Britain's Prince Harry (L), duke of Sussex and Meghan, duchess of Sussex, leave St. George's Chapel by carriage after their royal wedding ceremony, in Windsor, England, on Saturday. Photo by Hugo Philpott/UPI | License Photo

Britain's Prince Harry (L), duke of Sussex and Meghan, duchess of Sussex, exit St. George's Chapel in Windsor Castle after their royal wedding ceremony, in Windsor, England, on Saturday. Photo by Neil Hall/UPI | License Photo

Britain's Prince Harry (L), duke of Sussex and Meghan, duchess of Sussex, kiss as they exit St. George's Chapel in Windsor Castle after their royal wedding ceremony, in Windsor, England, on Saturday. Photo by Neil Hall/UPI | License Photo

May 19 (UPI) -- Britain's Prince Harry and U.S. actress Meghan Markle smiled, laughed, cried and held hands during their wedding ceremony at St. George's Chapel at Windsor Castle Saturday.

The bride wore a white, Clare Waight Keller for Givenchy gown, which was slightly off the shoulder with long sleeves, a train, diamond tiara and veil.

The couple, now officially known as the duke and duchess of Sussex, chose Cleave and Company to craft their wedding rings. Harry's is a platinum band with a textured finish and Markle's was created from a piece of Welsh gold Harry's grandmother -- Queen Elizabeth II -- bestowed upon her.

A children's choir sang religious hymns, the Kingdom Choir gospel singers performed a moving rendition of "Stand By Me" and Sheku Kanneh-Mason masterfully played the cello. Another unforgettable moment was when the newlyweds shared a kiss on the steps of the church in front of cheering well-wishers outside.